EP 1443459 A3 20040929 - Image processing method and apparatus for correcting photographic images
Title (en)
Image processing method and apparatus for correcting photographic images
Title (de)
Bildverarbeitungsverfahren und Vorrichtung zur Korrektur photographischer Bilder
Title (fr)
Procédé et dispositif de traitement d'images pour la correction d'images photographiques
Publication
Application
Priority
JP 2003025452 A 20030203
Abstract (en)
[origin: EP1443459A2] An area setting unit 12 is provided for distinguishing underexposed areas and overexposed areas in an original photo image. A noise and graininess suppressing power calculating unit 14 and a noise and graininess suppressing filter generating unit 15 set a filter for use in image processing of each pixel in the underexposed areas and overexposed areas according to the value of a parameter indicating an edge strength. A noise and graininess suppression processing unit 16, by using this filter, corrects a pixel value of each pixel in the underexposed areas and overexposed areas. <IMAGE>
IPC 1-7
IPC 8 full level
G06T 5/20 (2006.01); G06K 9/00 (2006.01); G06K 9/40 (2006.01); G06T 5/00 (2006.01); G06T 5/50 (2006.01); H04N 1/387 (2006.01); H04N 1/407 (2006.01); H04N 1/409 (2006.01); H04N 5/208 (2006.01)
CPC (source: EP US)
G06T 5/20 (2013.01 - EP US); G06T 5/70 (2024.01 - EP US); G06T 2207/10008 (2013.01 - EP US); G06T 2207/20192 (2013.01 - EP US); G06T 2207/20204 (2013.01 - EP US)
Citation (search report)
- [X] WO 0225928 A2 20020328 - APPLIED SCIENCE FICTION [US], et al
- [X] US 5818975 A 19981006 - GOODWIN ROBERT M [US], et al
- [Y] US 4825297 A 19890425 - FUCHSBERGER HERMANN [DE], et al
- [Y] EP 0377386 A2 19900711 - EASTMAN KODAK CO [US]
- [Y] US 2002176113 A1 20021128 - EDGAR ALBERT D [US]
- [A] US 2002141640 A1 20021003 - KRAFT WALTER [CH]
- [A] PATENT ABSTRACTS OF JAPAN vol. 1998, no. 10 31 August 1998 (1998-08-31)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1443459 A2 20040804; EP 1443459 A3 20040929; CN 1321519 C 20070613; CN 1520153 A 20040811; JP 2004236251 A 20040819; US 2004184672 A1 20040923
DOCDB simple family (application)
EP 04002146 A 20040131; CN 200410002857 A 20040117; JP 2003025452 A 20030203; US 76887904 A 20040130